package com.ren.weibo.base.filters;

import com.ren.weibo.pojo.vo.UserVO;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
@WebFilter(filterName = "LoginCheckFilter",urlPatterns = "/v1/weibo/*")
public class LoginCheckFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        Filter.super.init(filterConfig);
    }

    @Override
    public void destroy() {
        Filter.super.destroy();
    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
          HttpServletRequest request = (HttpServletRequest) servletRequest;
          HttpServletResponse response = (HttpServletResponse) servletResponse;
          HttpSession session = request.getSession();
          UserVO userVO=(UserVO) session.getAttribute("user");
          if (userVO != null){
              filterChain.doFilter(request,response);
          }else {
              response.sendRedirect("/login.html");
          }
    }
}
